Otterson



e. w. OTTERSON.

SETTLING BED.

APPLICATION FILED JAN-28,1919- Patented June 29, 1920.

2 SHEETSSHEET 1.

Lt) m N m \g m m ATTORNE G. w. OTTERSON.

SETTLING BED.

APPLICATION FILED JAN-28,1919.

Patented June 29, 1920.

2 SHEETS-SHEET 2.

15.:- 5 i.- i i ii: imimlfiliii ii i ii iii-E:

A TTORN E UNITED STATES PATENT OFFICE.

GEORGE WASHINGTON OTTERSON, OF SEATTLE, WASHINGTON,

sETTLING-BED;

Specification of Letters Patent. Patented June, 29 19 Continuation of application Serial No. 240,441bfi1ed June 17, 1918. Patent No. 1,295,056, dated-Februar 1B, 1919. i This application. filed January 28, 1919. Serial No. 273,543.

To all whom it may concern.-

Be it known that I, Gnonen W. OTTERSON, a citizen of the United States, and resident of Seattle, in the county of King and State of Washington have invented a new and useful Settling- Bed, of which the following is a specification. 1

The invention relates to settling beds, and particularly to settling beds employed in connection with apparatus. for cleaning sewer basins and the like, such as shown in U. S. Patent No. 1,295,056, Feb. 18, 1919, and application Serial No. 240,441, filed June 11, 1918, of which the present application is a continuation, and U. S. Patent N 0. 1,327,211 of January 6, 1920, of which this application is a continuation in part. One of the objects of the invention is to provide a simple, com act and effective form of settling bed. nother object is to provide a portable, vehicle-carried bed, baflled to cause the water to throw down its solids and freely dischargeable by tilting. These and other objects and features of the invention will become apparent as the specification proceeds.

In the accompanying drawings forming a nut hereof:

*ig'urc 1'is a side elevation of a traveling sewer basin cleaning apparatus. embodying the invention, the settling bedtank body be ing shown partly in elevation and partly in vertical longitudinal section in two differ. ent planes, and dotted lines being used to showthe tank partly tilted for dumping;

Fig. 2 is a plan View;

Fig. 3 is a-transverse vertical section on the line 3-3 of Fig. 2; and

Fig. 4 is a rear elevation ofthe body, showing the tail-gate. r

In these views the settlin bed 1 forms a tank body upon a motor ve icle 2. Inad dition the vehicle carries a hydraulic ejector elevator adapted to be let down into and raised from a catch-basin 3, the said elevator comprising an ejector 4 and pressure and discharge lines 5 and 6; The pressure line 5leads from the outlet of a pump 7,

and the discharge line 6 terminates in spout 8 to deliver the mixed stream of liquid and solids from the basin into the forward part of the settling bed. A water outlet9 also at the forward partof the bed connects through an automatic make and break joint 10 with the intake pipe 11 of the pump. The outlet 10 is at or near the provided to prevent leakage.

bottom of the tank, and above it,through the front wall, a certain distance below the top, lS 2tI1 overflow opening 12, from which water 15 returned through a pipe or hose 13 to the basin. The outlets 9 and 12 are provided wlth flap valves 14 and 15 by whlch they can be opened and closed. at will. the valves havingfiexible operating connectlons 16 and 17 extending to the top of the tank.

The settling bed is a substantially horizontal, rectangular tank, covered or not, and open to the pressure of theatmosphere. A long tudinal, vertical partitionlS extends 1n its interior near one of the side walls, from the front wall to within a short distance of the tail-gate 19, forming a substantially clear water gutter 20. The outlet 10 to the pump and the overflow 12 both open out ofthis gutter, while the spout 8 is arranged or adapted to discharge into the main interior of the tank at the of the partition.

The said main interior or settling space of thetank contains a series of transverse baifies 21 and 22, forming intervening settling compartments. The baffles 21, of which three are shown, form partitions across the main interior, which are substantially unbroken exceptifor large flow openings 23in thelr upper portions. These openings are located alternately adjacent the partition 18 andremote therefrom, so as to compel the water in passing rearward to pursue a circuitous course, asindicated by the arrows. The last baii'le 22 has its upper half, more or less, pierced with a multiplicity of small sieve openings 24. An additional lo and narrow baflie 25 is placed at the marchtrance of the gutter 20. The battles 21 and 22 are hung swingingly, on top cross-rods 26, and the baflie 25 issimilarly hungon a rod 27. 7 T

The settling bed body is pivoted toward the rear on the frame of the vehicle, as indicated at 28, so as to be tiltable for rear dumping by means 29 such as are commonly provided on dumping trucks.

The tail-gate 19 is also top hinged at 30, and is held tight shut by releasable clamps 31, suitable gasket means (not shown) being 7 Additional holding is effected by dogs 32 bearing upon the back of the gate at the bottom, these opposite side dogs projectingfrom a transverse rock- I tank. An operating rod 34: extends from a crank-arm 35 on this shaft to a forward hand lever 36, which cooperates with an ordinary serrated sector 37 to hold the dogs hard against the gate.

The battles and the partition 22 are preferably connected with a top frame 38, enabling all the interior parts to be lifted out so that the tank can be used for cargo-carrying purposes. The said frame is bolted at 39 to angles 40 on the upper longitudinal edges of the body, and its side members are apertured to receive the ends ofthe hinge rods 26. An angle 41 on the upper edge of the partition 18 is bolted at 42 to cross-members 43 of the frame, and other bolts 44: detachably secure a bottom angle 45 of the partition to the floor. Splash plates 46 and 47 are disposed over the top marginal parts of the tank, the side plates 46 being preferably carried by the removable frame and the end plates 47 secured to the body.

In operation, the stream of liquid and solids to be separated is deliveredinto the forward part of the main interior of the tank. The water flows rearward from compartment to compartment, through the staggered upper openings in the baffles 21, dropping its solids in these compartments, and then through the screen openings in the bafile 18, by which floating bodies are removed. From the last compartment, between the bafile 22 and the tail-gate, the substantially clear water enters the rear end of the gutter 20, where the additional baf- He 25 is placed as a further obstacle to solids reaching the outlet. From the forward part of the gutter the water is withdrawn by the pump 7 through theoutlet 10, and forced downward through the pressure line 5 to maintain the ejector jet in the basin. At the conclusion of the operation the water not needed for priming the pump at the basin next visited is run back through the overflow line 13 to the basin. When the mttling bed is full of solids, the vehicle proceeds to a place of discharge, the tail-gate is unfastened, and the body is uptilted. The baflles being free to swing rearward relatively to the body, the contents slide out beneath them, and the bed is thus expeditiously emptied of its deposits. In unfastening the tail-gate, the attendant first releases the clamps 31, and then goes forward and unlocks the lever 34, thereby releasing the dogs 30 and permitting the gate to swing open.

What I claim as new is:

1. In a portable settling-bed, the combination with a vehicle, of a tight tank tiltably mounted thereon for rear dumping, transverse baffles with openings for passage of water swingingly supported in the tank and forming a plurality of settling chambers, means for delivering a mixed stream of liquid and solids into one of the compartments, and a water outlet communicating with a remote compartment.

2. In a portable settling-bed, the combination with a vehicle, of a tight tank tiltably mounted thereon for rear dumping, a longitudinal partition in the tank close to one of its side walls forming a gutter communicating at one end with the main body of the interior, and transverse baflles swingingly supported and extending from said partition to the opposite side of the tank form ing a plurality of settling chambers in the main body of the tank.

3. A settling bed comprising a tight approximately horizontal rectangular tank having a partition close to one of its side walls forming a gutter communicating at one end with the main body of the interior of the tank, a water outlet from the remote part of the said gutter, means for delivering a mixed stream into the main, body of the tank, andv transverse baflles forming settling chambers in the main body of the tank.

4. In a settling bed, the combination of a tight approximately horizontal rectangular tank, a partition close to one of the side walls of the tank forming a relatively clear water gutter communicating at one end with the main interior of the tank and having an outlet toward. its opposite end, and transverse bafiles forming settling chambers in the main interior of the tank having flow openings in their upper portions located alternately adjacent the partition and remote therefrom.

5. In a settling bed, the combination of a tight approximately horizontal rectangular tank, a partition close to one of the side walls of the tank forming a relatively clear water gutter communicating at one end with the main interior of the tank and having an. outlet toward its opposite end, transverse bafilcs forming settling chambers in the main. interior of the tank having flow openings in their upper portions located alternately adjacent the partition and. remote therefrom, and a terminal ballle provided with small sieve openings.

6. A-portable settling bed comprising a tight substantially horizontal oblong tank vehicle body having a longitudinal partition near one side forming a relatively clear water gutter open at one end to the general interior of the tank, baffles forming settling chambers in said general interior, means for delivering a mixed stream into the bellied part of the tank, an outlet in the lower part of said gutter near its closed end, and a valve for opening and closing said outlet.

7. In apparatus of the class described, a settling tank, a support for the tank, means for hinging said tank on said support whereby said tank can be tilted for dumping purposes, a tail gate for the tank adapted to be opened in dumping, a swinging partition within the tank dividing the same into chambers for the separation of the liquid and solids and adapted to permit flow from one chamber to the other, means for delivering the solid and liquid material into one chamber, means for drawing oil the liquid from another chamber as it separates from the solids and passes through the partition, and means for hingedly mounting said partition at the top to swing on a transverse axis whereby as the tank is elevated to dump the partition will tend to maintain a vertical position and thereby allow the separated material from both compartments to be dis charged through the discharge end of the tank.

8. In apparatus of the class described, a settling tank, a support for the tank, means for hinging said tank on said support whereby said tank can be tilted for dumping purposes, a swinging partition within the tank dividing the same into chambers for the separation of the liquid and solids and adapted to permit flow from one chamber to the other, means for delivering the solid and liquid material into one chamber, means for drawing 011' the liquid from another cham her as it separates from the solids and passes through the partition, and means for hingedly mounting said partition at the top to swing on a transverse axis whereby as the tank is elevated to dump the partition will tend to maintain a vertical position and thereby allow the separated material from both compartments to be discharged through the discharge end of the tank.

GEORGE WASHINGTON OTTERSON. 

